Apparatus for making concrete building segments



Jan. 27, 1959 A.v HENDERSON APPARATUS FOR MAKING CONCRETE BUILDING SEGMENTS AUH Elli-:23:

I vocooacauooanoan Tv Filed Jan. 9.- 1957 0} IN V EN TOR. 4455 97- HENDERSQ Albert'Henderson, Pittsburgh, Pa. Application Jariuar' 9; 1957; Se'riaI No. 633,267

I 7' Claims. (c1; 25-131 vertical and without th'e'neces'sity of providing separate mold sides for segments of various widths and wall spacing.

Another object of my invention is to provide vertical mold walls that can readily be adjusted relative to one another on horizontal mold walls, to form vertical walls of various spacings, it being possible to use the same vertical and horizontal mold wall members for the upper half as for the lower half of a building segment of the type shown in my said application.

In the accompany drawing,

Figure 1 is a vertical sectional view through a casting assembly that embodies my invention;

Fig. 2 is a cross sectional view thereof;

Fig. 3 is a plan view thereof, and

Fig. 4 shows a manner in which the mold members of Fig. 1, and particularly the bottom mold members may be positioned to form a gabled roof for that portion of a segment which will serve as the top or roof therefor.

Fig. 5 is a plan view showing a modification of Fig. 3.

Beams 2 and foundations 3 are provided for supporting the mold bottoms 4. The beams and mold bottoms may be made in successive lengths so as to permit the casting simultaneously of a plurality of segments. Bracing angles 5 are secured to the beams 2 and also support the mold bottom plates 4.

Mold side walls 6 are supported by the beams 2 as shown more clearly in Fig. 2, to form the bottom slablike bottom 9 which will have to be filled in at various areas between the vertical molds having vertical walls 7-7 and 88 respectively. Mold blocks 10 serve as end mold walls for the ends of the slab-like members 9.

In order to provide for desired vertical wall spacing, the side forms 6 have holes 11 suitably of l-inch spacing, to receive bolts 12a that extend through angles 12 which are formed unitarily with the vertical mold walls. The holes through the angles 12 are elongated so as to permit some adjustment of the vertical mold walls relative to the bolts 12a, to distances less than the 1-inch spacing of the holes in the side forms.

Steam pipes 13 may be provided for hastening the curing of the concrete.

United A States Patent Patented- Jan. 27,1959

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2 1 6. A- turnbuckle arrangement at 17 will serve to hold the mold walls vertical,- one of'these adjustable/braces being provided for each vertical mold ateach end In Fig. 4, I show an arrangementfor giving a-gable root form to the half segment that will beinverte'd and placeduporr the segmentof Fig. 1, altlsiough of course, this roof or ceiling-I can -beflat; However, when it is desired 'to havea pitched orgabled form, the adjacentends of -thegbearns 2'. will be lowered a desired distance determined by the spacing members 18'.

The segments that are; respectively formed by the upper andlower sections will: be assembled end-to -endto form a complete building the walls of-.eachsegment. being in longitudinal"alinementwith-thewalls of adjacent segments. Partitions crosswise of the said vertical walls will be inserted at suitable distances, to form; closed rooms of -.;desiredlength, and door; and window openings provided, as descr-ibed inmy saidapplication-.- I Referring now to Fig. 5, I- show in plan'view, amodificationwhereinsthe mold sides for. forming; the vertical walls ore-partition are adjustable along the bottom mold wall and its side forms, to vary the thicknessofthe vertical walls, instead of formin-g such walls of fixed thickn'essl as provided for by the mold walls 7-7 and To this end, I make the motd wails' for" each partition or other vertical wall of L-shap'e'. Each mold hal'f'lia's a leg 20 and a leg 21 that are formed unitarily with each other, to form a box-like cavity. Each of these halfmold members has an extension 12b at its lower edge, to receive bolts 12a, for adjustment along side forms as in the case of Fig. 3.

The short legs of these half mold members have perforations 22 and they are overlaid by lips 23 secured to the upper edges of the legs 20. When the members 20 are moved toward and away from one another, the lips 23 will slide along the upper edges of the respective legs 21 and bolts or pins will be dropped through the lips 23 into the holes 22. I

The holes 22 have the same spacing as the holes 11 in the walls 6 of the bottom mold or trough.

Reinforcing steel as indicated in dash lines, Fig. 1, will be positioned in the bottom wall mold and bent up into the vertical wall cavities. The reinforcing steel will, therefor, become imbedded when the vertical and bottom mold cavities are filled.

In order to make cantilever extensions integrally with the castings, as shown in my said co-pending application, the end blocks 10 can be moved in the trough or bottom mold away from the vertical mold walls 7, the length of the extension depending, of course, upon the distance the blocks 10 are moved.

Cantilever projections of the slab-like portion 9 formed in the trough will be formed by placing fillers 25 between vertical wall molds at two or more locations along one side of the trough. These fillers or blocks 25 will be flush with the lower endsof the vertical wall molds such as 7. Therefore, the floor or roof slab 9 at that point will extend to cantilever fashion beyond the adjacent vertical walls. It will be understood, of course, that a sloping shape can be produced by lowering only one mold bottom slab at (Fig. 4) Where their edges the trough bottom sections.

Plates 15 will be hingedly or flexibly connected to the In order to reduce the weight of the slab-like portion 9 of the structure, particularly where there are long spans, I will place metal cores in the trough and pour the concrete around them. The cores which may be removable or permanent can conveniently be made of sheet metal. Where insulation is desired, particularly in the floor or roof of a building insulating boards will be placed in the trough-like molds and the concrete poured onto them, thereby bonding the boards to the concrete.

Also, I may integrally cast to the concrete a projection of base board form at the juncture of the concrete wall and fioor members, thus eliminating the necessity of later applying wood or tile base boards. Also, this base board shape of the casting may be entirely formed on the side wall a short distance above the floor, thus leaving a space beneath it for insertion of a carpet edge.

I claim as my invention:

1. Molding apparatus for making concrete roof or fioor building members having relatively spaced vertical walls integrally cast to said members, that comprises a lower horizontal mold which has a bottom and side walls, vertical wall molds open at their upper and lower end disposed crosswise of the side walls and mounted for adjustment along the upper edges thereof.

2. Apparatus as recited in claim 1, wherein, partial covers for the lower mold are positioned against the lower face portions of the vertical wall molds.

3. Apparatus as recited in claim 2 wherein, the said covers are hingedly connected to the vertical wall molds.

4. Apparatus as recited in claim 1, wherein, the sides of the lower mold have longitudinally spaced holes and the vertical walls are in pairs and the lower ends of each pair of vertical wall molds have matching holes to receive bolts that extend into certain of first named holes.

5. Apparatus as recited in claim 4 wherein, the side walls for each vertical mold are relatively adjustable in increments equal to the spacing of the said holes in the sides of the lower mold.

said vertical walls, the tiller extending from the upper end of the cavity to the uppermost plane of the said lower mold.

References Cited in the file of this patent UNITED STATES PATENTS 799,493 Pfeilfer Sept. 12, 1905 804,122 Hayes Nov. 7, 1905 1,079,112 Conzelman Nov. 18, 1913 1,163,248 McGuire Dec. 7, 1915 1,534,134 Murray Apr. 21, 1925 2,075,607 Griesel Mar. 30, 1937 2,148,189 Curran Feb. 21, 1939 2,306,548 Leemkuis Dec. 29, 1942 2,387,445 Herring Oct. 23, 1945 2,648,889 Youtz Aug. 18, 1953 2,721,368 Laudrum Oct. 25, 1955 FOREIGN PATENTS 543,921 Great Britain Mar. 19, 1942 

